JP3856785B2 - Force-limiting rotary locking device - Google Patents

Force-limiting rotary locking device Download PDF

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JP3856785B2
JP3856785B2 JP2003383127A JP2003383127A JP3856785B2 JP 3856785 B2 JP3856785 B2 JP 3856785B2 JP 2003383127 A JP2003383127 A JP 2003383127A JP 2003383127 A JP2003383127 A JP 2003383127A JP 3856785 B2 JP3856785 B2 JP 3856785B2
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shaft
housing
claw
locking device
angular direction
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JP2004162919A (en
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イー、ギトンズ セス
エイチ、ハウス ウィリアム
ケイ、ナカシマ ケネス
エイ、ポルカク エリック
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ムーグ インコーポレイテッド
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20Screw mechanisms
    • F16H25/2021Screw mechanisms with means for avoiding overloading
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18568Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18704Means to selectively lock or retard screw or nut

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Transmission Devices (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

本発明は、広い意味で言えば、力制限器(フォースリミッタ)に係わり、具体的に言うと、特に、航空機における、駆動軸と、フラップや羽根板(スラット)などの一つ以上の翼面との間に配設されるようになされた、改良された力制限式回転錠止装置(an improved force−limiting rotary lock)に関するものである。   In a broad sense, the present invention relates to a force limiter, specifically a drive shaft and one or more wing surfaces such as a flap or a blade (slat), particularly in an aircraft. In relation to an improved force-limited rotary locking device.

固定翼航空機では、フラップを用いて離陸時と着陸時に翼の輪郭を変える。幾つかの例では、翼に沿って間隔を置いて配置された複数のフラップの個々の動きを制御する回転軸を駆動するために、ボールねじアクチュエータが用いられる。力制限器を配置して、過負荷状態が検知されたときにアクチュエータ機構の損傷を防止することが、通常、望ましい。   On fixed-wing aircraft, the flaps are used to change the wing profile during takeoff and landing. In some examples, a ball screw actuator is used to drive a rotating shaft that controls the individual movement of a plurality of flaps spaced along the wing. It is usually desirable to place a force limiter to prevent damage to the actuator mechanism when an overload condition is detected.

各種回転錠止機構が、2001年2月7日に出願され、本出願の被譲渡人に譲渡された米国特許出願第09/778600号、米国特許第6109415号、第4697672号、第4579201号、第3898817号、および第5582390号に示され、かつ、説明されている。前記米国出願および前記米国特許の全内容を本明細書の記載として援用する。   Various rotary locking mechanisms have been filed on Feb. 7, 2001 and assigned to the assignee of the present application, U.S. Patent Application Nos. 09 / 778,600, U.S. Patent Nos. 6,109,415, 4,697,672, 4,579,201, Nos. 3898817 and 5582390 are shown and described. The entire contents of the US application and the US patent are incorporated herein by reference.

それゆえ、広い意味での本発明の目的は、改良された力制限式回転錠止装置を提供することである。   Therefore, it is an object of the present invention in a broad sense to provide an improved force limited rotary locking device.

別の目的は、フラップや羽根板(スラット)などの翼面の制御に用いられる力制限式回転錠止装置を提供することである。   Another object is to provide a force-limited rotary locking device used for controlling blade surfaces such as flaps and slats.

これらの目的と利点、および、その他の目的と利点は、本明細書の前記説明および以下の説明、そして、図面および特許請求の範囲の記載から明らかになるだろう。   These objects and advantages, as well as other objects and advantages, will become apparent from the foregoing description and the following description of the specification, and from the drawings and claims.

開示された具体例の対応する部品、部分、または表面を示すための符号を括弧付きで示しているが、これは、限定的な意味ではなく、単なる例示目的であるという前提で、本発明は、軸線(x−x)の周囲で回転運動をするようにハウジング(22)内に配設された軸(21)用の改良された力制限式回転錠止装置を提供するものである。また、軸は、ハウジングに対して軸線方向に動くことができ、ハウジングに対して軸線上の所定位置に動くように(皿ばね積層体33,34によって)付勢されている。改良された回転錠止装置は、広く言って、軸とハウジングのうちの一方に設けた少なくとも一つの部材(28)と、先に選択された軸とハウジングのうちの他方に設けられ、第一位置と第二位置の間で前記部材(28)に対して相対的に動くことのできる爪(51)とを含み、爪が(例えば図3に示す)第一位置にあるとき、前記部材と係合して軸が一方の角度方向に続行回転することを阻止し、また、爪が(例えば図2に示す)第二位置にあるとき、前記部材から離脱して、いずれの角度方向にも軸の回転を許容するように、作動可能に爪が配設されている。また、前記改良された回転錠止装置は、軸とハウジングのうちの一方に設けたカム(25)と、軸が所定位置から軸線方向で変位した時に、カムに係合し、連動する爪を第一位置と第二位置の間で選択的に動かすことにより、爪(51)を前記部材(28)に係合させ、軸が前記一方の角度方向に続行回転することを阻止するように配置された従動部材(フォロワ)(49)とを更に含む。 Reference signs for corresponding parts, portions or surfaces of the disclosed embodiments are shown in parentheses, but this is not a limitation and is for illustrative purposes only. An improved force limiting rotary locking device for the shaft (21) disposed in the housing (22) for rotational movement about the axis (xx). Further, the shaft can move in the axial direction with respect to the housing, and is biased (by the disc spring laminates 33 and 34) so as to move to a predetermined position on the axis with respect to the housing. The improved rotary locking device broadly comprises at least one member (28) provided on one of the shaft and the housing, and on the other of the previously selected shaft and housing. A claw (51) movable relative to the member (28) between a position and a second position, wherein the claw is in a first position (eg, as shown in FIG. 3) and the member engaging the shaft is prevented from continuing rotating to an angle direction of the hand, also when the pawl (e.g. shown in FIG. 2) in a second position, disengaged from said member, in either angular direction also to tolerate the rotation of the shaft, operably pawl is arranged. The improved rotary locking device includes a cam (25) provided on one of the shaft and the housing, and a claw that engages and interlocks with the cam when the shaft is displaced in the axial direction from a predetermined position. by selectively movable between a first position and a second position, the pawl (51) and into engagement with the member (28), arranged so that the axis is prevented from continuing rotating said one angular direction And a follower member (49).

図示例では、各部材(28)は、突起または爪で、軸から外向きに突出している。しかし、代替配置例では、そのような部材(突起、爪、またはその他のもの)をハウジング側に設けてもよい。   In the illustrated example, each member (28) protrudes outward from the shaft by a protrusion or a claw. However, in an alternative arrangement example, such a member (protrusion, claw or other) may be provided on the housing side.

また、好適形態では、装置は、単一の爪(51)を有して図示され、爪は、付勢ばね力が加えられた三位置のどの位置にも選択的に移動できるように作動的に配置されている。第一位置(例えば図3参照)においては、爪(51)が部材(28)と係合して軸の一方の角度方向での回転を阻止し、第二位置(例えば図2参照)においては、爪がそのような部材から離脱して軸がどちらの回動方向にも回転できるようにし、さらに第三位置においては、爪が部材(28)に係合して反対側角度方向へ続行回転することを阻止する。しかし、代替例として、複数の爪を設けてもよい。   Also, in a preferred form, the device is shown having a single pawl (51), the pawl being operative so that it can be selectively moved to any of the three positions where the biasing spring force is applied. Is arranged. In the first position (see, eg, FIG. 3), the pawl (51) engages the member (28) to prevent rotation in one angular direction of the shaft, and in the second position (see, eg, FIG. 2). The pawl is detached from such a member so that the shaft can rotate in either direction of rotation, and in the third position, the pawl engages the member (28) and continues to rotate in the opposite angular direction. To stop doing. However, as an alternative, a plurality of claws may be provided.

軸が一方の角度方向の回転を阻止されているとき、軸は反対側角度方向に回転することを阻止されない。さらに、軸が一方の角度方向の回転を阻止されているとき、爪は、軸の軸線上の位置とは無関係にその位置を維持する。爪が、第一のまたは停止位置(すなわち、一方の角度方向に続行回転することが阻止されている)にあり、たとえ軸が軸線方向に変位しないとしても、軸が反対側角度方向に回転すると、爪は、停止または第一位置から解放または第二位置に動かされる。   When the shaft is prevented from rotating in one angular direction, the shaft is not prevented from rotating in the opposite angular direction. Furthermore, when the shaft is prevented from rotating in one angular direction, the pawl maintains its position regardless of the position of the shaft on the axis. When the pawl is in the first or stopped position (ie, prevented from continuing to rotate in one angular direction) and the shaft rotates in the opposite angular direction, even if the shaft does not displace axially The pawl is stopped or released from the first position or moved to the second position.

初めに、類似の参照符号は、全図面を通じて、同じ構造部材、部分、または表面を識別するためのものであり、かかる構造部材、部分、または表面は、以下の詳細な説明を含む明細書全体に亘って説明されている。別途指摘しない限り、図面は、明細書とともに読むべきであり(例えば、クロスハッチング、部品構成、寸法比、角度など)、また、本件明細書全体の一部であると見なすべきである。以下の説明において使用された場合、水平、垂直、左、右、上、下の用語、およびそれらの形容詞的、ならびに副詞的派生語(例えば、水平に、右向きに、上向きに等)は、特定の図面を読者が見たときの図示構造の向きを単に指している。同様に、用語「内向き」および「外向き」は、伸長する軸線または回転軸線に対する表面の相対的な方向を概ね指している。   Initially, like reference numerals are used to identify the same structural member, part, or surface throughout the drawings, and such structural member, part, or surface may be used throughout the specification, including the following detailed description. Is described. Unless otherwise noted, the drawings should be read in conjunction with the specification (eg, cross-hatching, component configuration, dimensional ratios, angles, etc.) and should be considered part of the entire specification. When used in the following description, the terms horizontal, vertical, left, right, top, bottom, and their adjective and adverbial derivatives (eg, horizontally, rightward, upwards, etc.) are specified It simply refers to the orientation of the illustrated structure when the reader views the drawing. Similarly, the terms “inward” and “outward” generally refer to the relative direction of the surface with respect to the extending or rotational axis.

ここで図面、特に図1、を見ながら説明すると、本発明は全体としては改良された力制限式回転錠止装置を提供するものであり、現時点での好適実施例が模式的に符号20で指示されている。この実施例は、水平方向に伸長する、全体を21で表示された軸を含み、この軸は、全体を22で指示されたハウジング内に作動可能に配設されている。より具体的には、軸21が、ハウジングに対して相対的に回転し、かつ軸線方向移動ができるように配設されている。   Referring now to the drawings, and particularly to FIG. 1, the present invention generally provides an improved force-limited rotary locking device, the preferred embodiment at this time being schematically indicated at 20. Have been instructed. This embodiment includes a shaft, indicated generally at 21, that extends horizontally and is operatively disposed within a housing indicated generally at 22. More specifically, the shaft 21 is disposed so as to rotate relative to the housing and to move in the axial direction.

軸は、概ね水平な軸線x−xを有するように示されている。軸は、左先端部の模式的に符号23で表示された雄ねじ部と、ねじ部から右方向に間隔を置いた鍔(つば)24、各々が符号25で表示されて軸の一部から外向きに突出する複数のカムと、周方向に間隔を置いて配置され、外向き放射状に突出する爪(または突起状部材)28を備えた環状ディスク26と、駆動部材30のスプライン歯篏合部と作動可能に噛合する一連のスプライン歯29とを有する。駆動部材30は、適当な機構(図示せず)により軸線x−xを中心にして回転するように構成されている。スプライン結合のため、軸21は駆動部材30とともに強制的に回転させられるが、駆動部材30およびハウジング22に対して相対的に軸線方向に可動である。 The axis is shown as having a generally horizontal axis xx. The shaft has a male screw portion schematically indicated by reference numeral 23 at the left end portion and a collar 24 spaced apart from the screw portion in the right direction, each indicated by reference numeral 25 and separated from a part of the shaft. A plurality of cams projecting in the direction, an annular disk 26 provided with a claw (or projecting member) 28 that is disposed at intervals in the circumferential direction and projects radially outward, and a spline tooth meshing portion of the drive member 30 And a series of spline teeth 29 operatively engaged. The drive member 30 is configured to rotate about the axis xx by an appropriate mechanism (not shown). Due to the spline connection, the shaft 21 is forcibly rotated together with the drive member 30, but is movable in the axial direction relative to the drive member 30 and the housing 22.

軸左端のねじ部23は、別の部材または要素(図示せず)駆動用のねじ/ナット機構(図示せず)に作動可能に結合される。ねじ/ナット機構からの反力が、皿ばね36,38の予荷重よりも小さい限り、ハウジングに対する軸の軸線方向移動は認められない。しかし、そのような被駆動部が何らかの理由によりつかえると、軸21が継続して回転することにより予荷重を越える反力が発生し、ハウジング22に対して軸21を軸線方向に移動させる。 Axial left end of the male screw portion 23 is operably coupled to another member or element (not shown) for driving the screw / nut mechanism (not shown). As long as the reaction force from the screw / nut mechanism is less than the preload of the disc springs 36, 38, no axial movement of the shaft relative to the housing is permitted. However, if such a driven part can be used for some reason, a reaction force exceeding the preload is generated by continuously rotating the shaft 21, and the shaft 21 is moved in the axial direction relative to the housing 22.

ハウジングには、軸が貫通しており、水平に延在した特別構成の管状部材として図示されている。ハウジングは、小径の左側部分31と大径の右側部分32とを有する。ハウジングの左側部分31は、内向き突出環状部35により分断されて軸線方向で間隔を置いた二つの室33,34を有する。皿ばね積層体36は左の室33に配置され、もう一つの皿ばね積層体38は右の室34に配置されている。これら二つの皿ばね積層体は、予荷重調節用の挟み金(シム)39,40を介して軸の鍔24に作用し、軸をハウジングに対して軸線上の所定位置方向に移動するように弾発力を加えている。挟み金39,40は、各ばねに所望の予荷重を付与できるように選ばれ、軸線方向に同一厚さである必要はない。事実、特定の用途に応じてそれらは軸線方向に異なる厚さを有する。   The housing is illustrated as a specially configured tubular member with a shaft extending therethrough and extending horizontally. The housing has a small-diameter left portion 31 and a large-diameter right portion 32. The left part 31 of the housing has two chambers 33, 34 separated by an inwardly projecting annular portion 35 and spaced apart in the axial direction. The disc spring laminate 36 is arranged in the left chamber 33, and the other disc spring laminate 38 is arranged in the right chamber 34. These two disc spring laminates act on the shaft collar 24 via preload adjusting shims 39, 40 so that the shaft moves in a predetermined position on the axis relative to the housing. Adding elasticity. The clamps 39 and 40 are selected so that a desired preload can be applied to each spring, and need not have the same thickness in the axial direction. In fact, depending on the particular application, they have different thicknesses in the axial direction.

ハウジングの右側部分32は、(図1の左から右に)右向き環状垂直壁41、そこから右方に延在する内向き水平円筒面42、左向き環状垂直面43、内向き水平円筒面44、右向き環状垂直面45、内向き水平円筒面46、および左向き環状垂直面48を有して図示されている。カム25は四つを一群として軸線方向に間隔を置いて二群が配置されており、各群のカムは軸の周囲に各々約90°の等間隔を置いて配置されている。このように、計八つのカム25が設けられ、外向きに突出して内向き水平円筒面44に対向している。環状ディスク26は、面45,46,48の間に画成されるハウジングの凹所に配置される。先に説明したように、環状ディスク26は、四つの爪または突起状部材28が放射方向外向きに突出している環状ディスク部材である。これらの四部材は、環状ディスク26の円筒状外周面に等間隔に配置されている。   The right portion 32 of the housing comprises a right-handed annular vertical wall 41 (from left to right in FIG. 1), an inward horizontal cylindrical surface 42 extending rightward therefrom, a left-handed annular vertical surface 43, an inward horizontal cylindrical surface 44, Illustrated with a right-facing annular vertical surface 45, an inward horizontal cylindrical surface 46, and a left-facing annular vertical surface 48. Two groups of cams 25 are arranged in the axial direction with four groups as a group, and the cams of each group are arranged at equal intervals of about 90 ° around the shaft. Thus, a total of eight cams 25 are provided, projecting outward and facing the inward horizontal cylindrical surface 44. Annular disk 26 is disposed in a recess in the housing defined between surfaces 45, 46 and 48. As described above, the annular disk 26 is an annular disk member in which four claws or projecting members 28 protrude radially outward. These four members are arranged at equal intervals on the cylindrical outer peripheral surface of the annular disk 26.

従動部材49が、左向き環状垂直面43と右向き環状垂直面45の間に延在する開口に枢動可能に挿着された連接棒50の左先端部に装着されている。一端に従動部材49が装着された連接棒50の他端には、爪51が取付けられている。従動部材49は内側部52を有し、従動部材49の長さ方向に対して垂直に配置され、軸線方向に間隔が空けられたカム25,25の間に軸線に対して平行に配置される。これにより、軸がハウジングに対して軸線上の所定位置にあるときに駆動部材30が回転すると、軸21が回転してフラップが望みの運動をする。換言すると、正常作動時には、軸は駆動部材30からの入力に応じて回転するが、ハウジングに対して軸線方向には移動しない。   A driven member 49 is attached to the left end of the connecting rod 50 that is pivotally inserted into an opening extending between the left-side annular vertical surface 43 and the right-side annular vertical surface 45. A claw 51 is attached to the other end of the connecting rod 50 to which the follower member 49 is attached. The driven member 49 has an inner portion 52, is disposed perpendicular to the length direction of the driven member 49, and is disposed parallel to the axis between the cams 25, 25 spaced apart in the axial direction. . Thus, when the drive member 30 rotates when the shaft is at a predetermined position on the axis with respect to the housing, the shaft 21 rotates and the flap performs the desired motion. In other words, during normal operation, the shaft rotates in response to an input from the drive member 30, but does not move in the axial direction with respect to the housing.

しかし、フラップの駆動系がつかえると、そのような障害を有する駆動系の運動はねじ部23を経由して返送され、軸21が軸線方向に移動する。そうなると、従動部材49の内側先端がカム25の一つと係合する。軸が継続して回転すると従動部材49が連接棒50の軸を中心にして回動し、爪51が(図2に示す)第二位置(すなわち解放位置から(図3に示す)第一位置(すなわち停止位置)に動くHowever, when the flap drive system can be used, the movement of the drive system having such a failure is returned via the screw portion 23, and the shaft 21 moves in the axial direction. As a result, the inner end of the driven member 49 engages with one of the cams 25. When the shaft continues to rotate, the driven member 49 rotates about the shaft of the connecting rod 50, and the pawl 51 moves from the second position (ie, the release position ) ( shown in FIG. 2 ) to the first (shown in FIG. 3). Move to position (ie stop position ) .

図2、および図3が最も判りやすいが、爪は、三つの凹面53,54,55を有する、特別に形成された部材である。ボール56がハウジング内に配置されており、ばね58により付勢力が加えられて爪に対して押圧され、凹面53,54,55の一つにスナップ篏合(snap into:ばねの弾発力を利用した嵌合関係のこと)している。   2 and 3 are best understood, the claw is a specially formed member having three concave surfaces 53, 54, 55. A ball 56 is disposed in the housing, and a biasing force is applied by a spring 58 to be pressed against the claw, and snap into a concave surface 53, 54, 55 (snap into) The mating relationship used).

ハウジングに対して軸が軸線上の所定位置にあるとき、軸の正常回転運動により爪51が移動させられることはない。爪は、正常作動時には図2に示される解放または第二位置に保持される。しかし、フラップに過負荷が掛かり、または、つかえてねじ山連結部がハウジング内の軸の軸線方向移動を引起して軸が軸線方向のどちらかに移動すると、従動部材49が軸線方向に移動した軸のカム25に係合して爪を(図2に示す)解放位置から(図3に示す)停止位置に枢動させる。爪が停止位置にあるときには、図3に、反時計方向回転が阻止されて示されているように、爪が、環状ディスク26の爪または突起状部材28の一つを係止することにより、軸は同一方向にさらに回転することが阻止される。   When the shaft is at a predetermined position on the axis with respect to the housing, the claw 51 is not moved by the normal rotational movement of the shaft. The nail is held in the released or second position shown in FIG. 2 during normal operation. However, if the flap is overloaded, or if the thread connection causes the axial movement of the shaft in the housing and the shaft moves in either axial direction, the driven member 49 moves in the axial direction. Engaging the shaft cam 25 pivots the pawl from the release position (shown in FIG. 2) to the stop position (shown in FIG. 3). When the pawl is in the stop position, as shown in FIG. 3 with counterclockwise rotation blocked, the pawl locks one of the pawls of the annular disk 26 or one of the protruding members 28, The shaft is prevented from rotating further in the same direction.

しかし、一回動方向にさらに回転することが阻止されている場合においても、軸は逆の回動方向(すなわち時計回り)には自由に回転できる。この時、回動してきた突起状部材が偏心した爪と係合して爪を停止位置から正常位置に復帰させる。   However, the shaft can freely rotate in the reverse rotation direction (ie, clockwise) even when it is prevented from further rotation in one rotation direction. At this time, the projecting member that has rotated engages with the eccentric nail, and the nail is returned from the stop position to the normal position.

図1〜図3に示した設計では、過負荷が加わると、軸は、どちらの回動方向であろうと、さらに回転することが阻止されるが、逆の回動方向には常時自由に回転することができ、それにより、機構を停止状態から選択的に解放状態に移行させることに留意すべきである。   In the designs shown in FIGS. 1 to 3, when an overload is applied, the shaft is prevented from rotating further in any direction of rotation, but is always free to rotate in the reverse direction of rotation. It should be noted that the mechanism can be selectively moved from a stopped state to a released state.

このように、本発明によるとハウジングに装架された軸用の改良された力制限式回転錠止装置が得られる。   Thus, according to the present invention, an improved force limiting rotary locking device for a shaft mounted on a housing is obtained.

先に指摘したように、多くの変更や修正を施すことが可能である。例えば、図面に示した形状は、略図として見られることを意図したものである。略図により例示した本発明を実行する場合には、種々の、または異なる形状を採用することができる。現状では皿ばねを向い合せた皿ばね積層体を、予荷重を付与するための挟み金とともに用いることが好ましいが、他の種類の中央位置決め装置を用いることもできる。同様に、他の種類のカムと従動部材を用いることができる。爪は軸またはハウジングのどちらにも装着可能であり、その時突起状部材は爪が装着されていない軸またはハウジングに配置される。スプライン結合を他の連結手段で代替することは可能である。   As pointed out earlier, many changes and modifications can be made. For example, the shapes shown in the drawings are intended to be seen as schematic drawings. Various or different shapes can be employed when practicing the invention illustrated by the schematic. At present, it is preferable to use a disc spring laminated body facing a disc spring together with a clamp for applying a preload, but other types of central positioning devices can also be used. Similarly, other types of cams and driven members can be used. The claw can be attached to either the shaft or the housing, and the protruding member is then disposed on the shaft or housing where the claw is not attached. It is possible to replace the spline connection with other connecting means.

このように改良された力制限式回転錠止装置の現時点での好適形態を示して説明し、また、いくつかの変更と修正について論じたが、当業者には、特許請求の範囲の記載により規定され、また、差別化される本発明の精神から逸脱することなく各種の変更と修正を加え得ることが容易に理解できよう。   While the presently preferred embodiment of the force limiting rotary locking device thus improved has been shown and described, and several changes and modifications have been discussed, those skilled in the art will appreciate the scope of the claims. It will be readily appreciated that various changes and modifications can be made without departing from the spirit of the invention as defined and differentiated.

改良された力制限式回転錠止装置の軸、ハウジング、突起状部材、および爪を含む構成部材が示された一部欠截斜視図。FIG. 5 is a partially cutaway perspective view showing components including a shaft, a housing, a protruding member, and a claw of the improved force-limiting rotary locking device. 爪が解放または第二位置にある状態を示す図1の概ね線2−2で截断した垂直部分断面図。FIG. 2 is a vertical partial cross-sectional view taken along line 2-2 in FIG. 1 showing a state where the nail is released or in a second position. 爪が解放または第二位置から停止または第一位置に移動して爪が突起状部材の一つに作動的に係合し、軸が反時計回りにさらに回転することを阻止している状態を示す全体として図2に類似の図。A state in which the pawl is released or stopped from the second position or moved to the first position so that the pawl is operatively engaged with one of the protruding members, preventing the shaft from rotating further counterclockwise. FIG. 3 is generally similar to FIG.

Claims (4)

軸線(x−x)の囲で回転運動をするようにハウジング(22)内に配設された軸(21)の回転錠止装置(20)であり、
前記軸(21)が、前記ハウジング(22)に対して軸線方向に可動であり、また、軸線上の所定位置に向って動くように付勢力が加えられている前記軸用回転錠止装置(20)において、
前記軸(21)および前記ハウジング(22)のうちの一方に設けた少なくとも一つの部材(28)と、
前記軸(21)および前記ハウジング(22)のうちの他方に配設され、第一位置と第二位置の間で、前記軸(21)および前記ハウジング(22)のうちの前記他方に対して、前記軸線を横断する方向で動くことができる(51)と、
前記軸(21)および前記ハウジング(22)のうちの一方に装着されたカム(25)と、
前記軸(21)が前記所定位置から軸線方向に変位して、該軸(21)が回転した時に、前記カム(25)に係合して、前記第一位置と前記第二位置の間で前記爪(51)を選択的に動かすように配設された従動部材(49)とを含み、
前記爪(51)が、前記第一位置にあるとき、前記部材(28)に係合して前記軸(21)が一方の角度方向に引き続き回転することを阻止し、また、前記爪(51)が前記第二位置にあるとき、前記部材(28)から離脱して前記軸(21)をいずれの角度方向にも回転できるように前記爪(51)が配設され、さらに、
前記軸(21)が前記所定位置から軸線方向に変位かつ、前記爪(51)が前記部材(28)に係合した状態で、前記軸(21)が、前記一方の角度方向に引き続き回転することを阻止されるようになっている回転錠止装置。
An axial rotation locking device of the shaft (21) disposed within the housing (22) to the rotational movement (x-x) of the ambient (20),
The shaft rotary lock device (1 ), wherein the shaft (21) is movable in the axial direction relative to the housing (22) , and an urging force is applied so as to move toward a predetermined position on the axis. 20)
At least one member (28) provided on one of the shaft (21) and the housing (22) ;
Disposed on the other of said shaft (21) and said housing (22), between a first position and a second position, relative to said shaft (21) and said other of said housing (22) A claw (51) capable of moving in a direction transverse to the axis ;
A cam (25) mounted on one of the shaft (21) and the housing (22) ;
Said shaft (21) is displaced from the previous SL predetermined position in the axial direction, when the shaft (21) is rotated, said engaged with the cam (25), between said second position and said first position And a follower member (49) arranged to selectively move the claw (51)
When the claw (51) is in the first position, it engages with the member (28) to prevent the shaft (21) from continuing to rotate in one angular direction, and the claw (51 ) Is in the second position, the claw (51) is arranged so that it can be detached from the member (28) and the shaft (21) can be rotated in any angular direction,
Said shaft (21) is displaced in the axial direction from the predetermined position, and, in a state wherein the pawl (51) is engaged with said member (28), said shaft (21), subsequently said one angular direction A rotary locking device designed to be prevented from rotating.
前記軸が前記一方の角度方向の回転を阻止されているとき、前記軸が逆向きの角度方向には回転を阻止されていない請求項1に記載された回転錠止装置。   The rotary locking device according to claim 1, wherein when the shaft is prevented from rotating in the one angular direction, the shaft is not prevented from rotating in the opposite angular direction. 前記軸が前記一方の角度方向の回転を阻止されているとき、前記軸の軸線方向位置と無関係に前記爪が前記第一位置に保持される請求項2に記載された回転錠止装置。   The rotary locking device according to claim 2, wherein when the shaft is prevented from rotating in the one angular direction, the claw is held in the first position regardless of an axial position of the shaft. 前記軸(21)が、前記一方の角度方向の回転を阻止された状態で、軸線方向での変位なしに、前記逆向きの角度方向に回転せしめられ、かつ、前記軸が軸線方向に変位されていないとき、前記爪が前記第一位置から前記第二位置に動かされる請求項2に記載された回転錠止装置。 Said shaft (21), wherein in a state in which rotation was blocked in one angular direction, without displacement in the axial direction, the rotation allowed et is the angular direction of the opposite, and the displacement the shaft is axially The rotary locking device according to claim 2, wherein when not done, the pawl is moved from the first position to the second position.
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